'It was a little bit like kissing a brother': Abbie Cornish says filming steamy scenes with Game Of Thrones star Richard Madden was awkward

She has locked lips with several handsome leading men including Sam Worthington, Heath Ledger and most recently Joel Kinnaman in RoboCop.

But Abbie Cornish says kissing her latest co-star, Game Of Thrones star Richard Madden, was 'awkward'.

The 31-year-old shares steamy scenes with the 27-year-old Scotsman in the Discovery Channel’s first ever scripted miniseries, Klondike.

Scroll down for video

Awkward: Abbie Cornish told Fitzy & Wippa on Monday that locking lips with Game Of Thrones star Richard Madden on the set of their new series Klondike was awkward

Promoting the show on Nova’s Fitzy & Wippa on Monday, Cornish said that while the pair were filming in Canada they 'became best buddies...we would hang out all weekend...we'd go to the pub and drink beer and have pizza.'

'So when it came to the kissing scene,' she admitted, it was 'awkward, it was a little bit like kissing a brother.'

During her sit down with Ryan 'Fitzy' Fitzgerald and Michael 'Wippa' Wipfli, she also talked about how funny she finds her sister Isabelle's outrageous dialogue on Puberty Blues, and how excited her mum was to find out that she was working with Madden.

Crossing lines: She told the boys that kissing Madden was 'like kissing a brother'

Best buds! Abbie said that she and Richard became very close friends during their time shooting Klondike

After years of acclaimed performances in Australian films and television series, Cornish broke out in the US in 2011 with starring roles in Sucker Punch and Limitless.

As well as Kinnaman, she starred alongside Gary Oldman and Samuel L. Jackson in RoboCop, and will be seen on the silver screen again later this year in the mystery thriller film Solace, which stars Sir Anthony Hopkins.

Meanwhile, Klondike is a three-part miniseries by The Discovery Channel that follows two adventurers, Bill and Belinda (played by Madden and Cornish) during the 1890's Klondike Gold Rush.

The show, which debut in America back in January, will come to Australian television in June.